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28616607 = 324876529
BaseRepresentation
bin110110100101…
…0011110011111
31222211212121100
41231022132133
524311212412
62501204143
7465144225
oct155123637
958755540
1028616607
1115176098
129700653
135c0c406
143b2cb15
1527a3edc
hex1b4a79f

28616607 has 12 divisors (see below), whose sum is σ = 41426320. Its totient is φ = 19035648.

The previous prime is 28616587. The next prime is 28616617. The reversal of 28616607 is 70661682.

It is a happy number.

It is not a de Polignac number, because 28616607 - 28 = 28616351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28616617) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1119 + ... + 7647.

Almost surely, 228616607 is an apocalyptic number.

28616607 is a deficient number, since it is larger than the sum of its proper divisors (12809713).

28616607 is a wasteful number, since it uses less digits than its factorization.

28616607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7022 (or 7019 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 28616607 is about 5349.4492239856. The cubic root of 28616607 is about 305.8717583862.

The spelling of 28616607 in words is "twenty-eight million, six hundred sixteen thousand, six hundred seven".

Divisors: 1 3 9 487 1461 4383 6529 19587 58761 3179623 9538869 28616607